Start historizing supplied nodes; see history module Args: node: node or list of nodes that can be historized (variables/properties) period: time delta to store the history; older data will be deleted from the storage count: number of changes to s
(self, node, period=timedelta(days=7), count=0)
| 545 | return delete_nodes(self.iserver.isession, nodes, recursive) |
| 546 | |
| 547 | def historize_node_data_change(self, node, period=timedelta(days=7), count=0): |
| 548 | """ |
| 549 | Start historizing supplied nodes; see history module |
| 550 | Args: |
| 551 | node: node or list of nodes that can be historized (variables/properties) |
| 552 | period: time delta to store the history; older data will be deleted from the storage |
| 553 | count: number of changes to store in the history |
| 554 | |
| 555 | Returns: |
| 556 | """ |
| 557 | nodes = node if isinstance(node, (list, tuple)) else [node] |
| 558 | for node in nodes: |
| 559 | self.iserver.enable_history_data_change(node, period, count) |
| 560 | |
| 561 | def dehistorize_node_data_change(self, node): |
| 562 | """ |